﻿// See https://aka.ms/new-console-template for more information
internal class Program
{
    static void Main(string[] args)
    {
        var prtson = new Person()
        {

            Name = "张三",
            Age = 20
        };
        Console.WriteLine("hello world");
        Console.ReadLine();
    }
}
public class Person
{

    public string Name { get; set; }

    public int Age { get; set; }

}